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Touch display device

Active Publication Date: 2017-12-14
E INK HLDG INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention is about a touch display device that allows for thinner thickness and more favorable display contrast ratio compared to conventional devices. The touch electrode layer is placed in a non-display area of the driving substrate or outside the substrate, which prevents it from increasing the overall thickness of the device. The device can provide a capacitive touch sensing function when the conductor slidingly touches on the transparent conductive layer of the display module and the touch electrode layer.

Problems solved by technology

However, the touch substrate externally attached on the display module makes a thickness of the touch display device irreducible and unable to meet the demand for thinner product.
Moreover, the externally-attached touch substrate will also decrease a display contrast ratio of the touch display device and thus affect a display quality of the touch display device.

Method used

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Embodiment Construction

[0030]FIG. 1A illustrates a cross-sectional view of a touch display device according to an embodiment of the invention. FIG. 1B illustrates a top view of the touch display device of FIG. 1A. Referring to FIG. 1A and FIG. 1B together, in the present embodiment, a touch display device 100a includes a driving substrate 110, a display module 120, a touch electrode layer 130a and an insulating layer 140. The driving substrate 110 has a display area 111 and a non-display area 113, and the non-display area 113 is located outside the display area 111. The display module 120 includes a display medium layer 122, a transparent conductive layer 124 and a transparent cover plate 126 sequentially arranged on the driving substrate 110 and located in the display area 111. The touch electrode layer 130a is disposed in the non-display area 113 of the driving substrate 110. The insulating layer 140 covers an upper surface 121 of the display module 120 and extendedly covers a top surface 131 of the tou...

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PUM

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Abstract

A touch display device including a driving substrate, a display module, a touch electrode layer and an insulating layer is provided. The driving substrate has a display area and a non-display area located outside the display area. The display module includes a display medium layer, a transparent conductive layer and a transparent cover plate sequentially arranged on the driving substrate and located in the display area. The touch electrode layer is disposed in the non-display area of the driving substrate or outside the driving substrate. The insulating layer covers an upper surface of the display module and extendedly covers a top surface of the touch electrode layer along a side edge of the display module.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims the priority benefits of U.S. provisional application Ser. No. 62 / 349,645, filed on Jun. 13, 2016. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of this specification.BACKGROUND OF THE INVENTIONField of the Invention[0002]The invention relates to a display device, and more particularly, to a touch display device.Description of Related Art[0003]In the prior art, the touch display device is composed of a driving substrate, a display module disposed on the driving substrate, and an externally-attached touch substrate adhered on the display module through an optical adhesive layer. However, the touch substrate externally attached on the display module makes a thickness of the touch display device irreducible and unable to meet the demand for thinner product. Moreover, the externally-attached touch substrate will also decrease a display contrast ratio of...

Claims

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Application Information

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IPC IPC(8): G02F1/1333G06F3/041G06F3/044G02F1/03G02F1/167
CPCG02F1/13338G06F3/044G02F1/0316G06F3/0416G06F3/0412G02F1/167G06F3/0443G06F3/04166
Inventor CHENG, HSIAO-LUNGHUNG, CHI-MAO
Owner E INK HLDG INC
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